Chapter 17

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Across
  1. 4. Oxygen growth bacteria
  2. 7. Contains various substances
  3. 8. Harden plaque
  4. 10. above the gums
Down
  1. 1. tarter inhibiting compound
  2. 2. White blood cells
  3. 3. Underneath the gums
  4. 5. On external tooth surface
  5. 6. Without cells
  6. 9. Oxygen free bacteria